Cessna 172P - Page 44

SECTION 3
EMERGENCY
PROCEDUR,ES
CESSNA
MODEL
172P
1.
Apply
full rich
mixture.
2.
Use full
carburètor heat.
3. Reduce
power
to set up a
500
to 800 ft/min
rate of
descent.
4.
Adjust the
elevator
trim
and rudder
trim
(if
installed)
for
a
stabilized
descent
at 70-80
KIAS.
5.
Keep hands
off
the control wheel.
6.
Monitor turn coordinator
and
make corrections
by rudder
alone,
7,
Check trend
of compa,ss
card
movement
and
make
cautious
corrections
with rudder
to stop
the turn.
8,
Upon breaking
out of
clouds,
resume normal
cruising
flight.
RECOVERY
FROM
A SPIRAL
DIVE
If a
spiral
is encountered,
proceed
as follows:
1.
Close
the throttle.
2. Stop
the turn
by
using coordinatod aileron
and
rudder
control to
align the symbolic eirplane in the turn coordinator
with the
horizon reference line.
3.
Cautiously
apply elevator back
pressure
to slowly
reduce the
airspeed
to 8O
KIAS.
4. Adjust the
elevator trim control to maintain
an 80 KIAS
glide.
õ. Keep hands
off the control wheel, using rudder
control to hold
a
straight
heading. Adjust rudder trim
(if
installed)
to relieve
unbalanced rudder
force,
6, Apply carburetor
hea,t.
7. Clear engine occasionally, but
avoid using enough
power
to
disturb the
trimmed
glide.
8. Upon breaking
out of clouds, resume
normal
cruising flight.
INADVERTENT FLIGHT
INTO ICING
CONDITIONS
Flight into icing
conditions
is
prohibited.
An inadvertent encounter
with
these conditions
can
best be handled
using the checklist
procedures.
The best
procedure,
of course, is to turn
back or change altitude
to escape
icing
conditions.
STATIC
SOURCE
BLOCKED
If
erroneous
readings of
the static
source
instruments
(airspeed,
altimeter and vertical
speed) are suspected,
the
alternate
static source
valve
should
be
pulled
on,
thereby
supplying
static
pressure
to these
instruments from the cabin.
3-t4
3O
May
1980